Differential Amplifiers offer high slew rates.

Press Release Summary:

With 86 dB CMRR (common mode rejection ratio), Models 10 MHz AD8270 and 12 MHz AD8273 precision dual-channel difference amplifiers feature 30 and 25 V/µs slew rates, respectively. Units come with internal gain-setting resistors that allow engineers to set gain with no external components. Suited for industrial, avionics, and audio applications, Model AD8270 is available in 4 x 4 mm LFCSP package, while Model AD8273 comes in 54 mm square SOIC package.

Original Press Release:

10 MHz and 12 MHz Low-Distortion, Dual-Channel Difference Amplifiers Deliver Fast, Accurate Measurement

o AD8270 and AD8273 difference amplifiers provide 3 times higher bandwidth and slew rates, and low distortion to deliver faster, more accurate measurement results in industrial, avionics and audio applications.

About the AD8270 and AD8273

The AD8270 and AD8273 are high-speed, low distortion and precision dual-channel difference amplifiers designed for applications that require extremely fast and precise measurement without compromising signal fidelity, such as avionics, industrial process controls and high-performance audio equipment.

The 10 MHz AD8270 and 12 MHz AD8273 are three times faster than competing parts. In addition, the AD8270 features a 30 V/µs slew rate that is nearly three times better than the nearest competitive difference amplifier, while the 25 V/µs slew rate of the AD8273 is more than 1.5 times higher than other competing amplifiers. This ac performance is complemented by dc precision, best-in-class SNR (signal-to-noise ration) and an 86 dB CMRR (common mode rejection ratio) that is 12 dB higher than competing devices. Theses figures combine to give designers the ac and dc performance needed for rapid, error-free signal processing, which is critical for semiconductor test equipment, programmable logic controllers, power monitors and other high-speed, multi-channel systems.

The AD8270, available in a 4 mm x 4 mm package, is significantly smaller than other competing dual-channel difference amplifiers. The AD8273 is available in a 54 mm square package that is pin- and function-compatible with competing difference amplifiers, which allows designers to substitute the higher-performing part without reconfiguring board layout.

Both the AD8270 and AD8273 feature internal gain-setting resistors that allow the design engineer to set gain with no external components.

The AD8270 and AD8273 are compatible with other Analog Devices products, including the AD7621, AD767x, AD7685 and AD794x high-performance PulSAR® 14- to 18-bit SAR ADCs (analog-to-digital converters) and the ADR431 and ADR435 voltage references.

Availability and Pricing

The AD8270 and AD8273 dual difference amplifiers are sampling now and will be available in full production quantities in October 2007. The AD8270 comes in a 16-lead LFCSP (lead-frame chip-scale package) and is priced at $1.99 per unit in 1,000-piece quantities. The AD8273 dual difference amplifier is available in a 14-lead SOIC (small-outline integrated circuit) package and is priced at $1.65 per unit in 1,000-piece quantities. For more information, visit www.analog.com/pr/AD8270 and http://www.analog.com/pr/AD8273.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker "ADI" and is included in the S&P 500 Index.

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